Did The Hobbit's Evangeline Lilly Cheat on Lost Ex-Boyfriend Dominic Monaghan?

Lost co-stars Evangeline Lilly (Kate) and Dominic Monaghan (Charlie) dated from 2004 to 2007 (or 2009, depending on where you look). Afterward, she started dating Lost production assistant Norman Kali and they welcomed a son in 2011.

Dominic played Merry in The Lord of the Rings trilogy, and Evangeline was just added to the second film in The Hobbit series, The Desolation of Smaug, which is now the top film at the box office.

Someone tweeted Dom about how hot Evangeline looked in the movie, and Dom used the opportunity to throw shade at his ex:

That tweet surprised a lot of followers and some responded. Dom replied to criticism with "If I'm a douche because you don't like what I say that's not my concern.But I don't choose to lie on twitter #truthhurts"

Someone else replied, "Making things up can be fun though ..." Dom returned with "--naturally jokes are clearly signalled as jokes. But truth is important."

This is not the first time Dom has tweeted something shocking about one of his former Lost castmates. Back in May 2012, Dom tweeted that Matthew Fox (Jack) "beats women." Dom was also caught up in a strange tabloid story, after he allegedly sent rude texts to a young woman who rejected him.

He's not boring. Gotta give him that. But what do you think about using Twitter to call out your ex like this. Cool or not cool?